<form>
  <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label">
    <label class="mdl-textfield__label" for="filterText">Filter...</label>
    <input type="text" id="filterText" class="mdl-textfield__input" [(ngModel)]="filter" (keyup)="filterChanged($event)" />
  </div>
</form>